mitchell



May 31, 1927.

Original Filed Nov. 9, 1 ,7

' r Re 16 646 M 3 1927' A. MITCHELL TOOL FOR IREIOVING COLLARS [AND THELIKE v Original Filed Ndv. q. 1916 2 Sheet set 2 6 I 29- 129;; f fi @14; '\r I I Q7 Reissued May 31, i927.

-UNITED STATES PAT ENT' OFFICE.

ILGYD ANDREW niromi-LL, or ronrmn, OREGON.

TOOL FOB movmc COLLABS nu) 'rnnm'xn. j I

1 original 1T0. 1,259,088, dated larch 12, 1818, Serial 80. 180,484,filed November 8, 1816. Application 101' reissue filed August 10, 1921.Serial No. 491,278.

My invention relates to a collar removing in the particular arrangementand combinai tion of parts hereinafter described.

In the accompanying drawing Figure 1 is a top plan-view of a deviceembodying my invention, parts being broken Fig. 2 1s a verticalsectional view taken on the line A'A of Fig. 3. r

Fig. 3 is an elevational view of the device shown in Fig. 1, partsbeing. broken away.

Fig. 4 is a side view of Fig. 3 looking from the right.

Fig. 5 is a bottom view of the device shown in Fig. 3.

Fig. dis a vertical sectional view through the center of the deviceshown in Fig. 1 when the same has been set for removing a collar from ashaft.

Fig.1 is an elevational view of the same device in the position shown inFig. 6.

Fig. 8 is a side view oi the device taken from the right of Fig. 7.

Fig. 9 is a detail view, partly in section, showing the engagement ofone of the clamping jaws used with the collar to be removed.

Fig. 10 is a detail view, partly. in section, of a modified form ofdevice.

Fi 11 is a detail view, partly in section, showing a modified engagingmember such asis shown in Fig. 10, in engagement with the hub or collarto be removed.

Throughout the separate views the same part is designated .by the samereference character.

Referring more particularly to the'draw-r in'gs, 1 and 1 are twolongitudinal side the rod 2 carriesa secondcross-piece 4 with piecesmidway between which is a threaded rod 2, the pieces 1 and 1' being heldin proper relative position by being carried on the crossiece 3 which isenlarged and provided wit an opening at the center sulficient to permitt e rod 2 to pass through without touching. Above the cross-piece 3,

3 which it has threaded engagement, the crossiece 4 havin outward y anddownwardl inclined shou ders adapted to engage wit those shown in Figs.1, 2, 3 and 4 being upwardly and inwardl inclined shoulders 0n the heads5 and 5 o the side pieces 1 and 1', respectively. Consequently, it willbeseen that if the member 2 is pulled upwardly, the side pieces 1 and 1"will be thrown into vertical position by the enagement between theshoulders on the memr 4 and those on the members 5 and 5'. The sidepieces having been turned into the strictly vertical position or theposition parallel to the rod 2, the set screws 7 and 7 carried by theheads 5 and'5' respectively,

can be so set as to engage with the horizontal extensions 8 and 8 atopposite ends of the cross-piece or yoke 4, so as to give a direct pull.1 w

At the lower endsof the members 1 and. 1'

I provide engaging pieces such as 6 and ti,

the form of jaws adapted to clamp a co.lar

or the like beneath a flange such as 12 sothat the pull may betransmitted from the side iecesl, 1, to the collar, the members 6 an 6having studs 9 and 9' which project at right angles'to the memberslandl' and are seated in holes in the members 1 mill as indicated inFig. 4.

The side i being pivotally mounted on the cross-piece and are alsocapable of adjustment thereon by virtue of the fact thatthe cross-piece.

3 is--pi'ovided .with a number of holes at each end inwhich the pivotpins 11 and 11' for the. members 1 andl', respectivel may be placed asdesired, so as to vary t e di '1 and 1" are shown as ference between themembers 1 and 1' and the central threaded rod 2.

In case the collar or wheel hub to be re- 7 moved is not provided with aflange such as '12 under which the jaws 6 and 6' may fit,

ceive projections such as 13 on the on aging,

members 14 and 14'. Otherwme e arrangement shown in Figs. 10 and 11 issimilar to that shown in the remainingfigures.

In using my device, the side members 1 and 1' may be thrown so that theparts 6 and 6' or 14 and 14', as the case may be, en-. ga with thecollar or hub such as 10 or 15 an the rod 2 is turned so 'as to brin theyoke 4 up into engagement with the s oulders5 and 5' so as to hold thejaw members against the collar or hub. The set screws 7 and 7 are thenadjusted so that the yoke 4 will take a direct pull and not wedgeagainst shoulder'5, whereupon the rod 2 is turned so as to force againstthe shaft or axle 16 and drawthe collar or hub therefrom.

Having thus described my invention, I c1a1m:

1. A tool for removing collars and the like from shafts and the likecomprising in combination, a cross-piece,'a pair of side pieces pivotedto said cross-piece, .a yoke, a rod intermediate said side pieces havingthreaded engagement with said yoke, and means for transmitting stressfrom said yoke to said side-pieces for engaging them with a collar orthe like.

2. A tool for removing collars and the like from axles and the likecomprising in combination, .a pair of sidcpicces, a crosspiece to whichsaid side pieces are pivotally connected, a oke, a threaded rodintermediate said side-pieces having threaded engagement with said yoke,one end of each of 'said side-pieces having a wedging enga ement withsaid oke whereby the said side pieces are sprea at one end and broughttogather at the opposite cnd, means for transmittingstress from saidyoke to said side pieces, and means for engaging said side pieces witha, collar or the like.'

3. A tool for removing collarsand the like from axles and the likecomprisingin combination, a pair of side pieces, a cross-piece to whichsaid side pieces are ivotally connected, a yoke, -a threaded rointermediate said side pieces. having threaded engagement with saidyoke, one end of each of said side ieces havin a wedgin enga ment with said yoke wliereby thesfid sidef iiieces are 5 read at one end andbrought together at said opposite ends, and means for transmittingstress from said yoke to said side pieces, means for engaging said sidepieces with a collar or the like, said side pieces being adjustable onsaid cross-piece to vary the distance between them. I

4. A tool for removing collars and the like from axles and the likecomprising in combination, a pair of side pieces, a crosspiece to whichsaid side piecesarepivotally connected, a yoke, a threaded rodintermediate said side ieces having threaded engagementwith said yoke,one end of each of said side pieces having a wedgin eng "ement witpieces are spread at one end and brou ht together at the opposite end,means or transmitting stress from said yoke to said side pieces, andremovable jaws on said side pieces for engaging them with the collar orthe like. I

5. In a tool. for removig collars and the like in combination, a pair ofpivotally mounted side pieces, means for'applying a stress to said sidepieces when in engagement with a member to be removed, and removablejaws on said side pieces for engaging the side ieces with the member tobe removed, sait jaws havin a pin and socket connection with said si epieces, the pin and said side connection extending at right angles tothe line of stress in said side pieces.

6. In a tool for removing collars and the like in combination, a pair ofpivoted side pieces, means'for placing stress on said side pieces, andengaging members on said side pieces for engaging the collar or the likemember to be removed, said members having a pin and-socket connectionwith said side 1 pieces, said pin and said connection extendmg at rightangles to the line'of'stress in said side pleces. 1 A

7; In a tool for removing collars and the like in combination,a'crossiece, side pieces adjustably ivoted to sai cross-piece, athreaded ro intermediate said side pieces, a yoke having threadedengagement with said rod said yoke having wedging engagement with saidside pieces to spread the side pieces at their pivot points, and anadjustable stress contact member for transmittin the stress between saidyoke and the side pieces. In witness whereof I hereunto subscribe myname this 3 day of Au st, 1921.

FLOYD ANDREWfiITCHELL.

said yoke whereby sai side

